Clinical Evaluation of Air Usage during Phonation
Clinical Evaluation of Air Usage during Phonation
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发声期间空气使用的临床评估
DOI：
10.5112/jjlp.18.87
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发表时间：
1977
期刊：
影响因子：
--
通讯作者：
K. Honda
中科院分区：
文献类型：
--
作者：
H. Yoshioka;M. Sawashima;H. Hirose;T. Ushijima;K. Honda
为了测量发声过程中的空气使用量，我们通过使用肺活量计与简单的电气设备耦合，记录了持续发声过程中的空气体积曲线作为时间的函数。作为空气使用的间接估计，发声商（PQ）也从肺活量（VC）和最大发声时间（MPT）计算; PQ=VC/MPT。本文报道了肺功能测定仪测定肺功能指标与肺功能平均流速的对比研究。正常成人50例，男25例，女25例;病理组180例，男75例，女105例。对于每个受试者，在两种不同的发声条件下通过肺活量计获得平均流速;最大吸气后的最大持续发声和正常呼吸后的容易持续（3至5秒）发声。三个值的比较表明，在最大持续发声的平均流速表现出高度的正相关性，容易发声，以及与PQ。另一方面，较小程度的正相关性之间的平均流速容易持续发声和PQ。研究还表明，在容易持续发声期间的平均流速被认为是最能代表日常生活中的发声状况，是检测空气使用异常的三个值中最敏感的。进一步得出结论，这些测量值对于发声期间空气使用的总体评价是有价值的。
For measuring air usage during phonation, we recorded the air volume curve as a function of time during sustained phonation by using a spirometer coupled with a simple electrical device. As an indirect estimation of air usage, the phonation quotient (PQ) was also calculated from the vital capacity (VC) and the maximum phonation time (MPT) ; PQ=VC/MPT. This paper reports on a comparative study of PQ and the mean flow rate obtained by the spirometer. The subjects were 50 normal adults ; 25 male and 25 female, and 180 pathological cases ; 75 male and 105 female. For each subject, the mean flow rate was obtained by the spirometer under two different phonatory conditions ; maximum sustained phonation after maximum inspiration and easy sustained (3 to 5 sec) phonation after normal breathing. Comparison of the three values revealed that the mean flow rate during maximum sustained phonation showed a high degree of positive correlation with that of easy phonation as well as with PQ. On the other hand, a lesser degree of positive correlation was found between the mean flow rate during easy sustained phonation and PQ. It was also concluded that the mean flow rate during easy sustained phonation, which was considered to best represent the phonatory condition in daily life, was the most sensitive among the three values for detecting abnormality in air usage. It was further concluded that these measurements were valuable for the gross evaluation of air usage during Phonation.